[amsat-bb] Gamma match on Circular polarization antennas?

Pavel Milanes Costa co7wt at frcuba.co.cu
Mon May 18 04:41:26 UTC 2015


Hi,

I have read on numerous places that yaguis with gamma match must be 
avoided for circular polarization.

But it's my case.

I have access to cheap factory made 3 element yaguis for 2m with pretty 
good construction, and yes, it have gamma match.

I plan to use two of them 1/2 lambda apart and 90 degree shifted on X 
(V/H) and feed them in order to get either RHCP or LHCP...

Anyone has a real explanation of why I have to avoid gamma match for this?

It's really so bad, pros, cons?

Cheers to all.

-- 
M.Sc. Pavel Milanes Costa, CO7WT
SYSOP Nodo Gateway CO9JAZ
Ciudad de Camagüey, Camagüey, Cuba.
Cell: (+53) 53-847819



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